Idon’t really know how to do this question. i tried it out, but i can’t seem to figure out how to construct the perpendicular line that passes through a. can anyone ?

1. Draw an arc around your point that intersects the line (green)

2. Draw 2 arcs from where the first arc intersected the line (red)

3. Draw a line through the point where those 2 arcs intersect each other (blue)

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m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true